DNA necklace H | silver pp_neuro The convergent evolution argument holds

The convergent evolution argument holds that they evolved independently in great apes

Speech is a side effect of an airway-protection problem solved well

anyone whose sense of scale was transformed by looking through one

One femur on each side of the head

The catalog has gold versions of several other cell-biology pieces (mammalian cell

DNA necklace H | silver pp_neuro The convergent evolution argument holdsDNA necklace H sterling silver Two backbones, ten base pairs per turn, one continuous spiral. The horizontal pendant captures the double helix at its most readable, both strands extended at full width with the major and minor grooves spread across the pendant. Sterling silver, 30 mm, the form of the molecule everyone draws on a whiteboard. The Science Behind the Horizontal Helix The major groove and the minor groove are the two channels running along